4.1.1.2 Apply-Log Operations for Existing Backup Data

These operations bring the backup files up-to-date with any
changes to InnoDB tables that happened while the backup was in
progress. Although for convenience you can combine this
operation with the initial backup using the
backup-and-apply-log option, you must use run
the stages separately when performing incremental or
compressed backups.

Brings the InnoDB tables in the backup up-to-date,
including any changes made to the data while the backup
was running.

apply-incremental-backup

Brings the backup up-to-date using the data from an
incremental backup.

Example 4.3 Apply Log to Full Backup

mysqlbackup --backup-dir=/path/to/backup apply-log

It reads the backup-my.cnf file inside
backup-dir to understand the
backup. The my.cnf default files have
no effect other than supplying the
limit-memory=MB
value, which limits usage of memory while doing the
apply-log operation.

Because the apply-log operation does not apply to
incremental backups, no
incremental-backup-dir is needed
for this operation.